I bought my first Mastercraft recently (hooray!) and it came with a single axle trailer. The dealership said that a spare is not included because I can get one cheaper elsewhere. Odd, but okay. I'm wondering if anyone has advice on how to mount the spare to the trailer frame. The trailer is for a 2012 X2. Thanks in advance.

That's actually quite true and a common practice with most boat purchases. Admittedly at the price you paid for the boat the price of a spare is probably a very small percentage of the total cost. The last two boats I purchased (used of course) did not have spares. The POs in both instances told me they didn't tow much and that the spare was expensive that they didn't order one.

Buying one of the MasterCraft wheels from the dealer later however is not cheap either as I later found out. I ended up buying a wheel that was close in design then putting a MC tire cover on it.

... I ended up buying a wheel that was close in design then putting a MC tire cover on it...

Basically I did the same. Except the spare carrier is under the boat so I just mounted it upside down. The other thing that was expensive for what it was, was the hardware to hold down the tire in the carrier; I ended up just making my own.

That's actually quite true and a common practice with most boat purchases. Admittedly at the price you paid for the boat the price of a spare is probably a very small percentage of the total cost. The last two boats I purchased (used of course) did not have spares. The POs in both instances told me they didn't tow much and that the spare was expensive that they didn't order one.

Buying one of the MasterCraft wheels from the dealer later however is not cheap either as I later found out. I ended up buying a wheel that was close in design then putting a MC tire cover on it.

I'm guessing that you think I did a whole trailer tire mount. It was just the hardware that they wanted ~= $150 to mount the tire to the built in spare tire carrier on their newer trailers. It was essentially a bolt, wing nut (fancy one the size that you might find on your spare tire in your car trunk) and a hunk of plastic.

I'm also guessing that since you got a single axle trailer, you do not have a built in spare tire carrier?